runtime/WampClient.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Tue, 09 Oct 2018 11:43:39 +0300
changeset 2438 0f2e5303f212
parent 2434 07f48018b6f5
child 2459 21164625b393
permissions -rw-r--r--
pep8, ignore W606 'async' and 'await' are reserved keywords starting with Python 3.7

This error exists in pyjs extension, but pyjs isn't going to Python3.
'noqa' isn't working for W606, so this warning is disabled completely.
'async' and 'await' are still checked by pylint.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz runtime.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING.Runtime file for copyrights details.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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cefc9219bb48 runtime is licensed under LGPLv2.1
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# Lesser General Public License for more details.
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cefc9219bb48 runtime is licensed under LGPLv2.1
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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from __future__ import absolute_import
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from __future__ import print_function
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import time
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import json
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import os
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import re
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from builtins import str as text
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from autobahn.twisted import wamp
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from autobahn.twisted.websocket import WampWebSocketClientFactory, connectWS
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from autobahn.wamp import types, auth
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from autobahn.wamp.serializer import MsgPackSerializer
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from twisted.internet.defer import inlineCallbacks
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from twisted.internet.protocol import ReconnectingClientFactory
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from twisted.python.components import registerAdapter
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from formless import annotate, webform
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import formless
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from nevow import tags, url, static
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mandatoryConfigItems = ["ID", "active", "realm", "url"]
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_transportFactory = None
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_WampSession = None
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_PySrv = None
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WorkingDir = None
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# Find pre-existing project WAMP config file
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_WampConf = None
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_WampSecret = None
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ExposedCalls = [
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    ("StartPLC", {}),
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    ("StopPLC", {}),
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    ("GetPLCstatus", {}),
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    ("NewPLC", {}),
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    ("MatchMD5", {}),
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    ("SetTraceVariablesList", {}),
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    ("GetTraceVariables", {}),
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    ("RemoteExec", {}),
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    ("GetLogMessage", {}),
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    ("ResetLogCount", {})
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]
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# de-activated dumb wamp config
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defaultWampConfig = {
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    "ID": "wamptest",
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    "active": False,
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    "realm": "Automation",
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    "url": "ws://127.0.0.1:8888"
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}
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# Those two lists are meant to be filled by customized runtime
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# or User python code.
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""" crossbar Events to register to """
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SubscribedEvents = []
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""" things to do on join (callables) """
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DoOnJoin = []
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lastKnownConfig = None
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def GetCallee(name):
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    """ Get Callee or Subscriber corresponding to '.' spearated object path """
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    names = name.split('.')
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    obj = _PySrv.plcobj
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    while names:
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        obj = getattr(obj, names.pop(0))
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    return obj
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class WampSession(wamp.ApplicationSession):
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    def onConnect(self):
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        if "secret" in self.config.extra:
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            user = self.config.extra["ID"]
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            self.join(u"Automation", [u"wampcra"], user)
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        else:
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            self.join(u"Automation")
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    def onChallenge(self, challenge):
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        if challenge.method == u"wampcra":
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            if "secret" in self.config.extra:
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                secret = self.config.extra["secret"].encode('utf8')
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                signature = auth.compute_wcs(
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                    secret, challenge.extra['challenge'].encode('utf8'))
2218
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   112
                return signature.decode("ascii")
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   113
            else:
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   114
                raise Exception("no secret given for authentication")
1893
971de876b1af WAMP runtime : changes from dporopat and agregorcic, adding CRA (-s) and changed way to load WAMP conf (-c)
Edouard Tisserant
parents: 1892
diff changeset
   115
        else:
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   116
            raise Exception(
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   117
                "don't know how to handle authmethod {}".format(challenge.method))
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1439
diff changeset
   118
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1439
diff changeset
   119
    @inlineCallbacks
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parents:
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   120
    def onJoin(self, details):
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parents:
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   121
        global _WampSession
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   122
        _WampSession = self
1901
e8cf68d69447 Enforced check_source.sh pep8 and pylint rules.
Edouard Tisserant
parents: 1900
diff changeset
   123
        ID = self.config.extra["ID"]
2206
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   124
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   125
        for name, kwargs in ExposedCalls:
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   126
            try:
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   127
                registerOptions = types.RegisterOptions(**kwargs)
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   128
            except TypeError as e:
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   129
                registerOptions = None
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   130
                print(_("TypeError register option: {}".format(e)))
1e397afc36a9 #2486 ExposedCalls with register options as a dictionary.
dporopat <denis.poropat@smarteh.si>
parents: 2205
diff changeset
   131
2197
bec80ff35282 #2486 Unnecessary variable removed.
dporopat <denis.poropat@smarteh.si>
parents: 2196
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   132
            yield self.register(GetCallee(name), u'.'.join((ID, name)), registerOptions)
1439
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Edouard Tisserant
parents:
diff changeset
   133
1446
4963e3816641 Split runtime's twisted modules import and setup to ease runtime extensions hotpatching
Edouard Tisserant
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diff changeset
   134
        for name in SubscribedEvents:
2434
07f48018b6f5 python3 support: pylint, W1612 # (unicode-builtin) unicode built-in referenced
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   135
            yield self.subscribe(GetCallee(name), text(name))
1446
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parents: 1445
diff changeset
   136
4963e3816641 Split runtime's twisted modules import and setup to ease runtime extensions hotpatching
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parents: 1445
diff changeset
   137
        for func in DoOnJoin:
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diff changeset
   138
            yield func(self)
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parents: 1445
diff changeset
   139
2194
35d6b9321ffd #2486 Updated wamp test project to work with the latest Crossbar version.
dporopat <denis.poropat@smarteh.si>
parents: 2193
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   140
        print(_('WAMP session joined (%s) by:' % time.ctime()), ID)
35d6b9321ffd #2486 Updated wamp test project to work with the latest Crossbar version.
dporopat <denis.poropat@smarteh.si>
parents: 2193
diff changeset
   141
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
Edouard Tisserant
parents:
diff changeset
   142
    def onLeave(self, details):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   143
        global _WampSession, _transportFactory
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
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   144
        super(WampSession, self).onLeave(details)
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a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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parents:
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   145
        _WampSession = None
2201
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parents: 2199
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   146
        _transportFactory = None
1890
916099cb8d22 non significant print syntax change. ready for py3.
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parents: 1881
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   147
        print(_('WAMP session left'))
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Edouard Tisserant
parents:
diff changeset
   148
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   149
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826730e60407 Added auto-reconnect for runtime. Fixed Beremiz closing problem caused by remaining twisted reactor thread in IDE.
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   150
class ReconnectingWampWebSocketClientFactory(WampWebSocketClientFactory, ReconnectingClientFactory):
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parents: 2223
diff changeset
   151
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
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parents: 2194
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   152
    def __init__(self, config, *args, **kwargs):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
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   153
        global _transportFactory
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
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parents: 2194
diff changeset
   154
        WampWebSocketClientFactory.__init__(self, *args, **kwargs)
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   155
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   156
        try:
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   157
            protocolOptions = config.extra.get('protocolOptions', None)
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   158
            if protocolOptions:
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dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   159
                self.setProtocolOptions(**protocolOptions)
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   160
            _transportFactory = self
2418
5587c490a070 Use python 3 compatible exception syntax everywhere
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 2287
diff changeset
   161
        except Exception as e:
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   162
            print(_("Custom protocol options failed :"), e)
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   163
            _transportFactory = None
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   164
2193
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   165
    def buildProtocol(self, addr):
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   166
        self.resetDelay()
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   167
        return ReconnectingClientFactory.buildProtocol(self, addr)
259df9ecf9ca #2486 Reset delay function added. It resets the delay and the retry counter on reconnect.
dporopat <denis.poropat@smarteh.si>
parents: 1955
diff changeset
   168
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Edouard Tisserant
parents: 1440
diff changeset
   169
    def clientConnectionFailed(self, connector, reason):
2201
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parents: 2199
diff changeset
   170
        if self.continueTrying:
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diff changeset
   171
            print(_("WAMP Client connection failed (%s) .. retrying ..") %
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   172
                  time.ctime())
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Edouard Tisserant
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diff changeset
   173
            super(ReconnectingWampWebSocketClientFactory,
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Edouard Tisserant
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diff changeset
   174
                  self).clientConnectionFailed(connector, reason)
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   175
        else:
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   176
            del connector
1751
c28db6f7616b clean-up: fix PEP8 E301 expected 1 blank line, found 0
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1748
diff changeset
   177
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Edouard Tisserant
parents: 1440
diff changeset
   178
    def clientConnectionLost(self, connector, reason):
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   179
        if self.continueTrying:
2248
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Edouard Tisserant
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diff changeset
   180
            print(_("WAMP Client connection lost (%s) .. retrying ..") %
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
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diff changeset
   181
                  time.ctime())
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Edouard Tisserant
parents: 2223
diff changeset
   182
            super(ReconnectingWampWebSocketClientFactory,
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parents: 2223
diff changeset
   183
                  self).clientConnectionFailed(connector, reason)
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   184
        else:
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   185
            del connector
1441
826730e60407 Added auto-reconnect for runtime. Fixed Beremiz closing problem caused by remaining twisted reactor thread in IDE.
Edouard Tisserant
parents: 1440
diff changeset
   186
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   187
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   188
def CheckConfiguration(WampClientConf):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   189
    url = WampClientConf["url"]
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   190
    if not IsCorrectUri(url):
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   191
        raise annotate.ValidateError(
2248
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   192
            {"url": "Invalid URL: {}".format(url)},
2223
909216419e45 Fixed small typo in error message.
Edouard Tisserant
parents: 2221
diff changeset
   193
            _("WAMP configuration error:"))
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   194
2248
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   195
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   196
def GetConfiguration():
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   197
    global lastKnownConfig
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   198
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   199
    if os.path.exists(_WampConf):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   200
        WampClientConf = json.load(open(_WampConf))
2248
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   201
    else:
2221
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
Edouard Tisserant
parents: 2220
diff changeset
   202
        WampClientConf = defaultWampConfig.copy()
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   203
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   204
    for itemName in mandatoryConfigItems:
2248
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   205
        if WampClientConf.get(itemName, None) is None:
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   206
            raise Exception(
d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   207
                _("WAMP configuration error : missing '{}' parameter.").format(itemName))
2212
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
Edouard Tisserant
parents: 2207
diff changeset
   208
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   209
    CheckConfiguration(WampClientConf)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   210
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   211
    lastKnownConfig = WampClientConf.copy()
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   212
    return WampClientConf
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   213
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   214
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   215
def SetWampSecret(wampSecret):
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   216
    with open(os.path.realpath(_WampSecret), 'w') as f:
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   217
        f.write(wampSecret)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   218
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Edouard Tisserant
parents: 2223
diff changeset
   219
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   220
def SetConfiguration(WampClientConf):
2218
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   221
    global lastKnownConfig
7a4deed94eb2 Fixed a bit of everything in WAMP, and added web settings for that same extension.
Edouard Tisserant
parents: 2215
diff changeset
   222
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
parents: 2218
diff changeset
   223
    CheckConfiguration(WampClientConf)
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
Edouard Tisserant
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    lastKnownConfig = WampClientConf.copy()
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    with open(os.path.realpath(_WampConf), 'w') as f:
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        json.dump(WampClientConf, f, sort_keys=True, indent=4)
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    if 'active' in WampClientConf and WampClientConf['active']:
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        if _transportFactory and _WampSession:
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            StopReconnectWampClient()
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        StartReconnectWampClient()
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    else:
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        StopReconnectWampClient()
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    return WampClientConf
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e8cf68d69447 Enforced check_source.sh pep8 and pylint rules.
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   237
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   239
def LoadWampSecret(secretfname):
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    WSClientWampSecret = open(secretfname, 'rb').read()
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   241
    if len(WSClientWampSecret) == 0:
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        raise Exception(_("WAMP secret empty"))
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   243
    return WSClientWampSecret
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   244
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parents: 1667
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   245
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dporopat <denis.poropat@smarteh.si>
parents: 2199
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   246
def IsCorrectUri(uri):
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   247
    return re.match(r'wss?://[^\s?:#-]+(:[0-9]+)?(/[^\s]*)?$', uri) is not None
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dporopat <denis.poropat@smarteh.si>
parents: 2199
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4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
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   249
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   250
def RegisterWampClient(wampconf=None, wampsecret=None):
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   251
    global _WampConf, _WampSecret
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   252
    _WampConfDefault = os.path.join(WorkingDir, "wampconf.json")
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   253
    _WampSecretDefault = os.path.join(WorkingDir, "wamp.secret")
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   254
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   255
    # set config file path only if not already set
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   256
    if _WampConf is None:
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   257
        # default project's wampconf has precedance over commandline given
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   258
        if os.path.exists(_WampConfDefault) or wampconf is None:
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   259
            _WampConf = _WampConfDefault
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        else:
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   261
            _WampConf = wampconf
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   263
    WampClientConf = GetConfiguration()
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   265
    # set secret file path only if not already set
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   266
    if _WampSecret is None:
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   267
        # default project's wamp secret also
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   268
        # has precedance over commandline given
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   269
        if os.path.exists(_WampSecretDefault):
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            _WampSecret = _WampSecretDefault
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   271
        else:
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   272
            _WampSecret = wampsecret
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e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
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   274
    if _WampSecret is not None:
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        WampClientConf["secret"] = LoadWampSecret(_WampSecret)
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   276
    else:
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   277
        print(_("WAMP authentication has no secret configured"))
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   278
        _WampSecret = _WampSecretDefault
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   279
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
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   280
    if not WampClientConf["active"]:
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   281
        print(_("WAMP deactivated in configuration"))
cf1718962567 WampClient : Simplified, removed dead code, use exception for handling failures and misconfiguration, check existence of mandatory parameters.
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   282
        return
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   283
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
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   284
    # create a WAMP application session factory
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   285
    component_config = types.ComponentConfig(
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   286
        realm=WampClientConf["realm"],
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   287
        extra=WampClientConf)
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   288
    session_factory = wamp.ApplicationSessionFactory(
1744
69dfdb26f600 clean-up: fix PEP8 E251 unexpected spaces around keyword / parameter equals
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parents: 1740
diff changeset
   289
        config=component_config)
1439
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   290
    session_factory.session = WampSession
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   291
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e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1439
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   292
    # create a WAMP-over-WebSocket transport client factory
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   293
    ReconnectingWampWebSocketClientFactory(
2195
2cef75d036c2 #2486 Added option to use websocket protocol options.
dporopat <denis.poropat@smarteh.si>
parents: 2194
diff changeset
   294
        component_config,
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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   295
        session_factory,
2220
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   296
        url=WampClientConf["url"],
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971de876b1af WAMP runtime : changes from dporopat and agregorcic, adding CRA (-s) and changed way to load WAMP conf (-c)
Edouard Tisserant
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diff changeset
   297
        serializers=[MsgPackSerializer()])
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
Edouard Tisserant
parents:
diff changeset
   298
1440
e8daabf2c438 Runtime : Added PLCobject methods registring. IDE : Added WAMP connector. Still need some fixes
Edouard Tisserant
parents: 1439
diff changeset
   299
    # start the client from a Twisted endpoint
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   300
    if _transportFactory:
2248
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Edouard Tisserant
parents: 2223
diff changeset
   301
        connectWS(_transportFactory)
2220
985f234b0d09 Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
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diff changeset
   302
        print(_("WAMP client connecting to :"), WampClientConf["url"])
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
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parents: 2206
diff changeset
   303
        return True
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diff changeset
   304
    else:
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Edouard Tisserant
parents: 2218
diff changeset
   305
        print(_("WAMP client can not connect to :"), WampClientConf["url"])
2207
c27b820cb96b #2486 Exception if custom protocol options are wrong.
dporopat <denis.poropat@smarteh.si>
parents: 2206
diff changeset
   306
        return False
2204
25dafeb98b55 #2486 Reconnect funtion in SaveWampClientConf function.
dporopat <denis.poropat@smarteh.si>
parents: 2203
diff changeset
   307
2201
4e511f5aad19 #2486 Added global TransportFactory, needed in WebInterface reconnecting function.
dporopat <denis.poropat@smarteh.si>
parents: 2199
diff changeset
   308
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   309
def StopReconnectWampClient():
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   310
    if _transportFactory is not None:
2218
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diff changeset
   311
        _transportFactory.stopTrying()
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   312
    if _WampSession is not None:
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diff changeset
   313
        _WampSession.leave()
2203
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parents: 2202
diff changeset
   314
2204
25dafeb98b55 #2486 Reconnect funtion in SaveWampClientConf function.
dporopat <denis.poropat@smarteh.si>
parents: 2203
diff changeset
   315
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   316
def StartReconnectWampClient():
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
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parents: 2202
diff changeset
   317
    if _WampSession:
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
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parents: 2202
diff changeset
   318
        # do reconnect
2202
237c1a2de1c8 #2486 Adding reconnect funtion to WampClient. Global TransportFactory not needed anymore.
dporopat <denis.poropat@smarteh.si>
parents: 2201
diff changeset
   319
        _WampSession.disconnect()
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diff changeset
   320
        return True
2204
25dafeb98b55 #2486 Reconnect funtion in SaveWampClientConf function.
dporopat <denis.poropat@smarteh.si>
parents: 2203
diff changeset
   321
    else:
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   322
        # do connect
2202
237c1a2de1c8 #2486 Adding reconnect funtion to WampClient. Global TransportFactory not needed anymore.
dporopat <denis.poropat@smarteh.si>
parents: 2201
diff changeset
   323
        RegisterWampClient()
237c1a2de1c8 #2486 Adding reconnect funtion to WampClient. Global TransportFactory not needed anymore.
dporopat <denis.poropat@smarteh.si>
parents: 2201
diff changeset
   324
        return True
2203
c8a32ad27c0a #2486 Modified reconnect function. Added 'active' parameter to wampconf.json file.
dporopat <denis.poropat@smarteh.si>
parents: 2202
diff changeset
   325
1736
7e61baa047f0 clean-up: fix PEP8 E302 expected 2 blank lines, found 1
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1667
diff changeset
   326
1439
a68cd4253259 Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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parents:
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   327
def GetSession():
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   328
    return _WampSession
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   329
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   330
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   331
def getWampStatus():
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d9353e440887 autopep8 + hand made fixes on ProjectController.py runtime/WampClient.py wxglade_hmi/wxglade_hmi.py
Edouard Tisserant
parents: 2223
diff changeset
   332
    if _transportFactory is not None:
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        if _WampSession is not None:
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            if _WampSession.is_attached():
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                return "Attached"
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            return "Established"
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   337
        return "Connecting"
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    return "Disconnected"
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   339
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dporopat <denis.poropat@smarteh.si>
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   340
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   341
def SetServer(pysrv):
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   342
    global _PySrv
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   343
    _PySrv = pysrv
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   346
# WEB CONFIGURATION INTERFACE
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WAMP_SECRET_URL = "secret"
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webExposedConfigItems = ['active', 'url', 'ID']
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   351
def wampConfigDefault(ctx, argument):
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    if lastKnownConfig is not None:
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        return lastKnownConfig.get(argument.name, None)
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   355
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def wampConfig(**kwargs):
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    secretfile_field = kwargs["secretfile"]
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    if secretfile_field is not None:
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        secretfile = getattr(secretfile_field, "file", None)
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        if secretfile is not None:
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            secret = secretfile_field.file.read()
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            SetWampSecret(secret)
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   363
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   364
    newConfig = lastKnownConfig.copy()
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   365
    for argname in webExposedConfigItems:
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        arg = kwargs.get(argname, None)
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   367
        if arg is not None:
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   368
            newConfig[argname] = arg
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   369
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   370
    SetConfiguration(newConfig)
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   371
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   372
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   373
class FileUploadDownload(annotate.FileUpload):
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    pass
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   375
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   376
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   377
class FileUploadDownloadRenderer(webform.FileUploadRenderer):
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   378
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   379
    def input(self, context, slot, data, name, value):
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   380
        # pylint: disable=expression-not-assigned
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   381
        slot[_("Upload:")]
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        slot = webform.FileUploadRenderer.input(
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   383
            self, context, slot, data, name, value)
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   384
        download_url = data.typedValue.getAttribute('download_url')
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   385
        return slot[tags.a(href=download_url)[_("Download")]]
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   386
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   387
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   388
registerAdapter(FileUploadDownloadRenderer, FileUploadDownload,
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   389
                formless.iformless.ITypedRenderer)
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   390
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   391
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   392
def getDownloadUrl(ctx, argument):
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   393
    if lastKnownConfig is not None:
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   394
        return url.URL.fromContext(ctx).\
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   395
            child(WAMP_SECRET_URL).\
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diff changeset
   396
            child(lastKnownConfig["ID"] + ".secret")
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diff changeset
   397
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diff changeset
   398
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diff changeset
   399
webFormInterface = [
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   400
    ("status",
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diff changeset
   401
     annotate.String(label=_("Current status"),
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   402
                     immutable=True,
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diff changeset
   403
                     default=lambda *k:getWampStatus())),
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diff changeset
   404
    ("ID",
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diff changeset
   405
     annotate.String(label=_("ID"),
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diff changeset
   406
                     default=wampConfigDefault)),
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diff changeset
   407
    ("secretfile",
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diff changeset
   408
     FileUploadDownload(label=_("File containing secret for that ID"),
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diff changeset
   409
                        download_url=getDownloadUrl)),
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   410
    ("active",
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diff changeset
   411
     annotate.Boolean(label=_("Enable WAMP connection"),
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diff changeset
   412
                      default=wampConfigDefault)),
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diff changeset
   413
    ("url",
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diff changeset
   414
     annotate.String(label=_("WAMP Server URL"),
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diff changeset
   415
                     default=wampConfigDefault))]
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diff changeset
   416
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diff changeset
   417
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diff changeset
   418
def deliverWampSecret(ctx, segments):
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diff changeset
   419
    # filename = segments[1].decode('utf-8')
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diff changeset
   420
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   421
    # FIXME: compare filename to ID+".secret"
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   422
    # for now all url under /secret returns the secret
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diff changeset
   423
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   424
    # TODO: make beautifull message in case of exception
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diff changeset
   425
    # while loading secret (if empty or dont exist)
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diff changeset
   426
    secret = LoadWampSecret(_WampSecret)
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   427
    return static.Data(secret, 'application/octet-stream'), ()
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diff changeset
   428
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diff changeset
   429
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diff changeset
   430
def RegisterWebSettings(NS):
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   431
    NS.ConfigurableSettings.addExtension(
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diff changeset
   432
        "wamp",
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   433
        _("Wamp Settings"),
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diff changeset
   434
        webFormInterface,
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diff changeset
   435
        _("Set"),
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
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diff changeset
   436
        wampConfig)
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diff changeset
   437
e03f7649bfb3 WAMP: now config and secret given in project files always override those given in commandline. Also made extensions web customisations happen before registration of web interface.
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diff changeset
   438
    NS.customSettingsURLs[WAMP_SECRET_URL] = deliverWampSecret